LONDON (AP) -- Amy Winehouse died as the unintended consequence of drinking too much alcohol, a British coroner ruled Wednesday.

Coroner Suzanne Greenaway gave a verdict of "death by misadventure," saying the singer died of accidental alcohol poisoning. "The unintended consequence of such potentially fatal levels [of alcohol] was her sudden and unexpected death," Greenaway said.

The singer, who had fought drug and alcohol problems for years, was found dead in bed at her London home on July 23 at age 27. An initial autopsy proved inconclusive, although it found no traces of illegal drugs in her system. Pathologist Suhail Baithun told the inquest into the singer's death that Winehouse had consumed a "very large quantity of alcohol" — the level in her blood put her more than five times over the legal drunk-driving limit.

Police Detective Inspector Les Newman, who was called after a security guard found Winehouse, said empty vodka bottles were scattered around her bedroom.

Winehouse's doctor, Dr. Christina Romete, said the singer had resumed drinking in the days before her death after a period of abstinence.